Geek cyclists, eat your heart out: engineering students at UPenn have reached inside your collective consciousness and pulled out the stuff of dreams to create Alpha, a concept bike so sleek and tech'd out you'll gladly cut off a pinky just to take one ride on it.

Stephen Wolfram is a well-known figure in the sciences thanks to genius inventions like the math problem-solving software Mathematica. Now he's in the news again for a very different reason: He's trying to reinvent web search by making a smart "fact computer" engine.